This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like $45,678$), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like $40,000 + 5,000 + 600 + 70 + 8$). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The expanded form $70,000 + 8,000 + 300 + 20 + 9$ needs to be converted to standard form, requiring students to combine place values correctly into digits. Choice A is correct because it properly combines to $78,329$, with correct digit placement and comma, demonstrating understanding of place value addition. Choice D fails by omitting the comma and squishing digits, which happens when students don't use proper standard form notation. To help students: Practice adding expanded forms step-by-step; use place value charts to align terms to positions. Watch for missing commas or misplaced digits, and emphasize zero's role as a placeholder.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The number 65,408 needs to be written in expanded form, requiring students to understand place value meaning in each position and recognize zero as a placeholder. Choice A is correct because it properly represents the value as 60,000 + 5,000 + 400 + 8, demonstrating understanding of place value and number representation. Choice B represents placing digits in wrong positions, such as treating the 0 as 4 tens, which happens when students misplace digits when writing. To help students: For expanded form, write each digit's value separately then add. Use place value charts to show each digit's position and value. Watch for: omitting zeros (30,405 written as 3,045), wrong comma placement (4,5678), and adding 'and' in whole number word forms (save 'and' for decimals only).

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost differing position is the greater number. The numbers 256,431 and 265,134 need to be compared, requiring students to compare place values from left to right and recognize the tens of thousands place as the first difference. Choice C is correct because it uses '<' to show 256,431 < 265,134, as the 5 in tens of thousands is less than 6. Choice B fails by using '>', which would be wrong as it reverses the comparison, often when students compare rightmost digits first. To help students: Line up numbers by place value and compare left to right—first difference determines which is greater. Emphasize that zero holds a place but represents 'none,' and watch for comparing from the right instead of left.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The numbers 271,608 and 271,680 need to be compared, requiring students to compare place values from left to right and recognize zero as a placeholder. Choice B is correct because it correctly compares the tens place, showing 271,680 is greater than 271,608. Choice A represents comparing rightmost digits instead of leftmost, which happens when students compare rightmost digits first instead of leftmost. To help students: For comparing, line up numbers by place value and compare left to right—first difference determines which is greater. Use place value charts to show each digit's position and value. Emphasize that zero holds a place but represents 'none' of that place value (271,608 = two hundred seventy-one thousand, six hundred [zero tens,] eight).

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like $45,678$), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like $40,000 + 5,000 + 600 + 70 + 8$). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The numbers $64,918$ and $64,891$ need to be compared, requiring students to compare place values from left to right, focusing on the hundreds place where they first differ. Choice B is correct because it uses '>' to show $64,918 > 64,891$, as the hundreds digit $9 > 8$, demonstrating proper comparison. Choice A represents the wrong symbol by reversing the inequality, which happens when students compare rightmost digits instead of leftmost. To help students: Line up numbers by place value and compare left to right; practice with charts. Emphasize the first difference determines which is greater, and watch for comparing backwards.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The word form 'ninety-two thousand, six hundred fifteen' needs to be converted to standard form, requiring students to recognize place values like ninety-two thousand as 92,000 and six hundred fifteen as 615. Choice B is correct because it properly represents the value as 92,615, with correct comma placement and digit positioning, demonstrating understanding of place value and number representation. Choice A represents misplacing the digits by swapping 1 and 5, which happens when students don't understand the grouping in word form like 'six hundred fifteen' meaning 615. To help students: For word form, practice reading aloud and mapping to digits; use place value charts to align words to positions. Watch for common errors like omitting commas or adding unnecessary zeros, and emphasize comparing by lining up place values.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The numbers 408,215 and 408,152 need to be compared, requiring students to compare place values from left to right until the hundreds place differs. Choice B is correct because 408,215 is greater, as the 2 in hundreds is larger than 1, showing proper comparison. Choice A fails by selecting the smaller number, which happens when students compare rightmost digits first instead of leftmost. To help students: Line up numbers by place value and compare left to right—first difference determines which is greater. Emphasize consistent digit lengths, and watch for reversing the comparison direction.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The numbers 507,206 and 570,206 need to be compared, requiring students to examine the ten-thousands place after the hundred-thousands are equal. Choice B is correct because 570,206 is greater, as its ten-thousands digit 7 > 0 in 507,206, showing proper left-to-right comparison. Choice A fails by selecting the smaller number, which happens when students compare rightmost digits first instead of leftmost. To help students: Use place value charts for alignment; practice identifying the first differing digit. Watch for assuming equality without checking all places, and emphasize zero's placeholder role.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The number 205,090 needs its expanded form identified, requiring students to break it into place values, recognizing zeros in ten-thousands, hundreds, and ones. Choice A is correct because it shows 200,000 + 5,000 + 90, omitting zero terms, demonstrating place value understanding. Choice C fails by using 900 instead of 90, which happens when students misplace the 9 from tens to hundreds. To help students: Write each place separately; use charts to identify non-zero values. Emphasize omitting zero terms in expanded form, and watch for adding unnecessary zeros.

This question tests 4th grade ability to read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form, and to compare numbers using place value understanding (CCSS.4.NBT.2). Multi-digit numbers can be represented in three main forms: standard form (digits with commas like 45,678), word form (words like 'forty-five thousand, six hundred seventy-eight'), and expanded form (place values added like 40,000 + 5,000 + 600 + 70 + 8). When comparing numbers, we examine digits from left to right, starting with the highest place value—whichever number has the larger digit in the leftmost position is the greater number. The number 58,407 needs to be written in word form, requiring students to understand place value meaning in each position, such as fifty-eight thousand for 58,000, four hundred for 400, and seven for 7. Choice A is correct because it properly represents the value in each place as 'fifty-eight thousand, four hundred seven,' demonstrating understanding of place value and number representation without using 'and' in whole number word forms. Choice B fails by including 'and,' which is reserved for decimals and happens when students mistakenly apply spoken language conventions to written form. To help students: Use place value charts to show each digit's position and value; for word form, practice reading aloud with proper phrasing ('fifty-eight thousand' | 'four hundred seven'). Emphasize that zero holds a place but represents 'none' of that place value, and watch for omitting zeros or wrong comma placement.